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This material summarizes the results regarding the analysis of the mechanical stress states for a piping system subjected to impeded thermal expansion. It were considered different load cases corresponding to the primary loads (own weight + internal pressure) and the secondary loads (induced by thermal expansion, including the thermal displacements of the equipment connection points). The stresses values determined for each load cases were compared with the allowable limits evaluated according to ASME B31.3 code, resulting that the analyzed piping system is safe.

The technology can be considered a systematic, knowledge-based action, applicable in industrial processes in order to transform resources into products requested by the customer. Technology uses scientific resources but is, at the same time, itself a science of applying knowledge for practical purposes. Technology is ultimately the measure of the efficiency of industrial management. The management, as a science, takes the information regarding the management processes and submits them to some analysis procedures in order to perfect the existing management methods and to complete them with new ones. The applicative character of the management results from the fact that the experiences regarding the systems management are materialized in the design of new systems, methods, techniques, and procedures that constitute the tools made available to the managers for achieving the company's objectives. The manager must prove the ability to understand economic and social phenomena, the laws that govern them, objectively identifying the risks and opportunities, in order to plan the company's activities. An equidistant, efficient and coherent policy established by the management guarantees the success and ensures the agreement of the company's existence with the market evolution.

Thedistribution of aggregates in the cross-section of the drum, in the case of equipment used for the production of asphalt mixtures, essentially influences the performance of rotary dryers. In the research carried out in this article, the optimization of the distribution of particles in the active region of the drum was pursued by modifying the geometric shape of the flights, taking into account at the same time the influence of the technological parameters of operation such as drum rotation speed and drum filling degree. The studies were performed using the discrete element method (DEM), and the obtained results revealedthat flight geometry strongly influences drying efficiency. The efficiency of rectangular double-angled type flights is strongly influenced by the drum rotation speed, especially at high levels of filling degree (20%), with the mass of aggregates exposed to drying increasing by 41.11% when drum rotation speed increases from 10 rpm to 15 rpm. Similarly, hook-type flights show a minimum efficiency at 15% filling degree and 15 rpm. The comparative analysis of the flight shape is not only carried out in order to establish the variant that ensures maximum drying efficiency but also from the point of view of execution technology. (Original flights can be obtained by deep drawing, but they have a complex geometric configuration; cup flights can be obtained very easily from tubular material cut on the generators; hook flights by deep drawing or welding the cut tubular material on a straight plate, and the L type by deep drawing). Taking into account that semi-finished products can be very thick, it is possible that, in some cases, hot embossing is necessary, so making them out of tubular material eliminates these inconveniences. All the presented results highlight that the rectangular, double-angled and hook-type flights are the most appropriate shapes that can be used regardless of the drum filling degree and rotation speed.

The paper refers to the field assessment activities necessary for the construction works of transport routes for the easy oil fractions from the vapour space of 3 gasoline storage tanks, considering the case when the tanks are filled as well as those necessary for the construction works of transport routes for the collecting of the gasolineoline vapors generated when loading the tank cars. For this paper, field measurements and on site research regarding the layout of the vapor recovery system were conducted, at the ROM OIL — ARAD fuel warehouse, thus gathering the data necessary for the assessment of the resistance to flow on the transport routes of the air-hydrocarbon vapors mixtures, both from the storage tanks as well as from the loading rack, to the vapor recovery unit.